Summary
---------

Errors in lambdas requiring inference (`proc(e: auto) echo e`), no
longer crash the compiler. Instead errors within the lambda body are
reported and lambda inference fails as it should.

Details
-------

`semInferredLambda` failed to wrap its output when there were errors.
This would reach `transf` and result in a compiler crash by hitting an
`unreachable` assertion.

Now errors in the body are reported immediately (to provide context for
inference failure) and AST output from the inference attempt is
correctly wrapped such that inference appropriately fails.

…dy_error.nim

Co-authored-by: zerbina <100542850+zerbina@users.noreply.github.com>

…dy_error.nim

Co-authored-by: zerbina <100542850+zerbina@users.noreply.github.com>

Co-authored-by: zerbina <100542850+zerbina@users.noreply.github.com>